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RS-232 Interconnections — The printer is configured as Data Terminal Equipment (DTE). Figure 23
illustrates the connections required to interconnect the printer with the standard 9-pin serial port
connector on a PC. Figure 24 illustrates the internal connections of the printer’s RS-232 connector.
NOTE: If using a 9-pin to 25-pin adapter plug attached to the computer, use a
null modem cable between the adapter plug and the printer. To connect the
printer to other DTE devices with DB25 connectors (such as an optional serial
port of a PC), an RS-232 null modem (crossover) cable should be used.
Appendix B
170PAX2-Series User’s Guide 57
Rear Panel
DB25 Female
J3
Figure 24. RS-232 Connections
DB25 Male
Connector
to Printer
DB9 Female
Connector
to P.C.
Figure 23. 9-Pin to 25-Pin Interconnecting Cable